Los Angeles Clippers head coach Doc River calls to his players during the first quarter of an NBA basketball game against the Boston Celtics in Boston, Wednesday, Feb. 14, 2018. (AP Photo/Charles Krupa)

Boston Celtics center Aron Baynes dunks during the first quarter of the team’s NBA basketball game against the Los Angeles Clippers in Boston, Wednesday, Feb. 14, 2018. (AP Photo/Charles Krupa)

When he’s making his free throws, that makes it a much bigger problem.

Jordan had a career-high 30 points and 13 rebounds and the Clippers beat the Boston Celtics 129-119 on Wednesday night for their fourth victory in five games.

The 6-foot-11 center, a 59 percent shooter from the free-throw line coming into the game, went 8 for 9, including hitting all four when Boston coach Brad Stevens called for his team to foul him twice intentionally.

Jordan seemed to feed off Boston’s poor pick-and-roll defense every time the Clippers needed a basket. He had eight dunks, four in the opening quarter.

“Whenever I’m setting picks and rolling, it puts a lot of pressure on the defense,” he said.

Jordan finished 11 for 14 from the field. He entered hitting 64.7 percent of his shots this season.

Kyrie Irving led Boston with 33 points and eight assists. Al Horford had 20 points, and Marcus Morris added 13 points and 11 rebounds. The Celtics lost for the fourth time in five games, a stretch that has seen them fall behind Toronto for the best record in the Eastern Conference.

The Celtics allowed more than 120 points for the second straight game, surrendering a season-high to the Clippers after giving up 121 against Cleveland on Sunday.

Boston hadn’t allowed 120 before the last two games.

“We couldn’t guard them all night,” Stevens said. “So that had nothing to do with the start, middle or finish.”

The Celtics are 6-9 in their last 15 games.

“The theme here is our defense needs to be better,” Horford said. “We’re a group that’s built what we have so far based on the defensive end. We’ve taken a big step back on that, it’s obvious, the last few games.”

Boston had opened a 99-95 lead early in the final quarter on Terry Rozier’s 3-pointer from the left wing before the Clippers went on 10-0 run over a 1:57 stretch.

Williams sparked the spree by scoring the initial six points, with the first three coming on a shot from beyond the arc in front of the Celtics’ bench. He added a conventional three-point play after his driving basket.

The Clippers saw their lead sliced to three twice before Jordan had an alley-oop dunk and Harris followed with a three-point play with just under three minutes to play.

Williams’ three-point play made it 126-116 in the final two minutes.

In the third quarter, the lead changed hands 10 times in the final 3:11, with the Clippers taking the final one at 93-91 on Harris’ 3-pointer from the left wing.

TIP-INS

Clippers: The are 5-2 since they sent Blake Griffin to Detroit in blockbuster trade on Jan. 29. … Former Celtics guard Avery Bradley got a nice ovation during pregame introductions.

Celtics: Coach Brad Stevens said guard Marcus Smart (cut, right hand) will start practicing next Wednesday, and that he put the team in a “tough position” with the injury that he suffered when he cut his hand on glass at the team hotel in Los Angeles in late January.

GRONK COMMOTION

Patriots tight end Rob Gronkowski walked into the arena early into the third quarter, bringing cheers and a loud reaction from the fans sitting behind the basket where Irving was shooting free throws.

He waved to the fans when he walked past the stanchion to his front-row seat. Later, he danced when he was shown on the video board.

STREAK CONTINUES

Williams scored 15 or more points for the 27th consecutive game, the league’s second longest active streak.

NICE START

The Clippers opened a 31-17 lead late in the opening quarter and led 34-25 after one. They held the lead for the entire first half, holding a 61-57 edge at intermission.

UP NEXT

Clippers: At Golden State on Feb. 22. They’re 1-2 against the Warriors this season, with all three games decided by double digits.